Singapore oil swaps prices rose on Monday as the products caught up with last week's crude gains and naphtha's backwardation widened on talk of delays to barrels from Kuwait. Singapore naphtha prices were quoted at $47.55 a barrel, versus on Friday's $47.15. The November/December paper spread widened to 30 cents from 20 cents on Friday.
Kuwait refineries were forced into an emergency shutdown on October 31 following a power outage.
The refineries resumed production last week but the exact impact on naphtha exports was still unclear.
"The Kuwait issue is driving out spreads even though demand has not changed," said a trader in Singapore.
Kuwait is Asia's second-largest supplier of naphtha after Saudi Arabia.
Gas oil swaps prices for November stood at $56.10 a barrel, a $1 gain from Friday's levels.
The counting narrowed to roughly 10 cents from a 20 cents spread on Friday, possibly due to higher Indonesian demand.
Gas oil's premium to benchmark Dubai crude improved to $20.20 a barrel, from $19.80 on Friday.
November regard, or the price spread between jet-kerosene and gas oil, weakened 35 cents to $3.05 a barrel as temperatures in North Asia stayed relatively warm.
Traders said Japan's domestic prices for kerosene, used as heating oil during winter, were still lower than international levels.
Fuel oil paper prices rose $1 to $202.25 a tonne. November's premium to December barrels stretched to 50 cents from 40 cents on Friday.
Nymex crude futures were down 29 cents at $49.32 a barrel after closing 79 cents higher at $49.61 in New York on Friday.